Internal Thread Metering Valve: Definition, Applications, Principle & Technical Parameters

1. Definition of Internal Thread Metering Valve

The Internal Thread Metering Valve is the abbreviation of Vacuum Metering Valve, also known as Vacuum Needle Valve. It mainly includes High-Vacuum Metering Valves, Ferrule-Type Micro-Regulating Valves, and High-Precision Metering Valves.

The main application of metering valves is to precisely control the flow rate of gas introduced into vacuum vessels. Vacuum Metering Valves are used to inflate vacuum systems and can accurately adjust the intake flow rate to control and regulate the degree of vacuum in the system. The applicable working media are particle and dust-free air and non-corrosive gases.

2. Applications of Internal Thread Metering Valve

Metering valves are widely used in industries such as petroleum, natural gas, nuclear industry, power stations, ships, metallurgy, heavy machinery, and scientific research institutes.

3. Operating Principle and Structure Description of Internal Thread Metering Valve

The Internal Thread Metering Valve is used for precise regulation of fluid flow rate.

• Working pressure: 3000psig (207bar)

• Operating temperature: -23℃~204℃ (equipped with fluororubber)

• Flow coefficient Cv: 0.024

It can provide straight-through or right-angle connections; suitable for panel mounting; applicable to both vacuum and positive pressure, and suitable for gases and liquids, with wide application in various fluid system fields. It provides metric 2mm～8mm and imperial 1/16in.～1/4in. ferrule and pipe thread connections.

4. Technical Parameters of Internal Thread Metering Valve

• Product Name: Internal Thread Metering Valve

• Nominal Diameter: 1/16"~1"; customizable for special specifications

• Actuation Method: Manual

• Connection Type: Ferrule connection, internal thread, socket welding, external thread, butt welding; other types of joints are available

• Nominal Pressure: 1000Psi

• Maximum Pressure: ≤6000Psi

• Applicable Temperature: -45℃~+121℃

• Maximum Temperature: ≤230℃

• Applicable Media: Gases, liquids, etc.

• Product Weight: 1KG~15KG

• Valve Body Material: SS304, SS316, SS316L

• Structure Type: Ferrule Ball Type

• Applicable Places: Petroleum, natural gas, nuclear industry, power stations, ships, metallurgy, heavy machinery, scientific research institutes

• Test Pressure: 1.5 times the maximum working pressure